Ohun elo semikondokito ohun alumọni carbide

Silikoni carbide (SiC)ohun elo semikondokito jẹ ọkan ti o dagba julọ laarin awọn semikondokito aafo ẹgbẹ jakejado ni idagbasoke. Awọn ohun elo semikondokito SiC ni agbara ohun elo nla ni iwọn otutu giga, igbohunsafẹfẹ giga, agbara giga, photoelectronics ati awọn ẹrọ sooro itankalẹ nitori aafo ẹgbẹ jakejado wọn, aaye ina gbigbẹ giga, adaṣe igbona giga, gbigbe elekitironi itẹlọrun giga ati iwọn kekere. Silikoni carbide ni ọpọlọpọ awọn ohun elo: nitori aafo ẹgbẹ jakejado rẹ, o le ṣee lo lati ṣe awọn diodes ina-emitting bulu tabi awọn aṣawari ultraviolet ti o ni ipa nipasẹ ina oorun; Nitori pe foliteji tabi aaye ina ni a le farada ni igba mẹjọ ju ohun alumọni tabi gallium arsenide, paapaa ti o dara fun iṣelọpọ awọn ohun elo giga-voltage giga gẹgẹbi awọn diodes giga-voltage, triode power triode, silikoni iṣakoso ati awọn ẹrọ microwave agbara giga; Nitori iyara ijira elekitironi saturation giga, o le ṣe sinu ọpọlọpọ awọn ẹrọ igbohunsafẹfẹ giga (RF ati makirowefu);Silikoni carbidejẹ olutọpa ti o dara ti ooru ati ṣiṣe ooru dara ju eyikeyi ohun elo semikondokito miiran, eyiti o jẹ ki awọn ohun elo carbide silikoni ṣiṣẹ ni awọn iwọn otutu giga.

Gẹgẹbi apẹẹrẹ kan pato, APEI n murasilẹ lọwọlọwọ lati ṣe agbekalẹ eto awakọ mọto ayika ayika rẹ fun NASA's Venus Explorer (VISE) ni lilo awọn paati ohun alumọni ohun alumọni. Ṣi ni ipele apẹrẹ, ibi-afẹde ni lati de awọn roboti iwakiri lori dada ti Venus.

Ni afikun, sohun ọṣọ carbideni o ni kan to lagbara ionic covalent mnu, o ni o ni ga líle, gbona elekitiriki lori Ejò, ti o dara ooru wọbia išẹ, ipata resistance jẹ gidigidi lagbara, Ìtọjú resistance, ga otutu resistance ati ti o dara kemikali iduroṣinṣin ati awọn miiran-ini, ni o ni kan jakejado ibiti o ti ohun elo ninu awọn aaye ti Aerospace ọna ẹrọ. Fun apẹẹrẹ, lilo awọn ohun elo carbide silikoni lati ṣeto ọkọ ofurufu fun awọn astronauts, awọn oniwadi lati gbe ati ṣiṣẹ.

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Akoko ifiweranṣẹ: Oṣu Kẹjọ-01-2022
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